Board Thread:Pokémon Help/@comment-31398341-20171026040947/@comment-31486859-20180322100051

I doubt Swellow can make it to the list. The Boomburst set requires Heat Wave, which Swellow can only learn via Move Tutor. AND The held item is Choice Specs.

See more here: https://www.smogon.com/dex/sm/pokemon/swellow/